Halloween Costume Guide
A one-eyed doctor, a 1930s suit, and a pact between three friends who survived the war.
Burt Berendsen patches up bodies and asks too many questions about a murder, in roughly equal measure. He is a World War One veteran, a doctor who treats his patients with unconventional methods, and one third of a tight trio of friends whose wartime bond pulls them into a political conspiracy in 1930s New York. Christian Bale plays him in David O. Russell’s Amsterdam (2022), a film that also stars John David Washington and Margot Robbie (IMDb). Recognition at a general Halloween party will be low. The film underperformed theatrically and is not widely streamed. Most people will read this as a sharp 1930s costume first and ask about the character second, if at all.
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The tweed suit needs to sit right, and the fedora needs to look like it belongs on your head rather than placed there. Those are the two things people notice first. If the hat is sitting too far back or the suit jacket is clearly a size too large, the costume reads as costume rather than character. The collar of the white shirt is the detail that betrays the period most easily. A modern cutaway collar under a 1930s-cut jacket looks immediately wrong, even if people cannot name why.
Burt is a doctor who spent time in the trenches and came back missing an eye and carrying a complicated relationship with pain. He is calm in a distracted way, like someone who is always slightly more interested in a problem than in the conversation he is currently in. At a party, that translates to something specific: he is engaged, but there is a thread of preoccupation running underneath. He is thinking about something else. That detail, played quietly, is more character-accurate than any prop you could add.
The tweed suit is unlikely to arrive looking 1930s on its own
Most tweed suits sold online are cut for modern proportions: narrow shoulders, tapered waist, shorter jacket length. The 1930s silhouette is wider in the shoulder and longer in the body. If the suit you receive reads as contemporary rather than period, the costume loses its anchor. Before ordering, check the seller’s size chart for shoulder width and jacket length specifically. A suit that fits a bit loosely will look more accurate here than one that fits perfectly by modern standards.
The eye detail is optional but it is the character-specific touch
Burt wears a prosthetic glass eye in the film after losing the original in the war. For a costume, an eye patch is the practical option and reads clearly at a party. A painted ping pong ball is a more accurate but considerably weirder choice. If you are going to a gathering where people know the film, the eye patch adds context. At a general party it mostly prompts questions about pirates, which may or may not be something you want to deal with.
Group Idea: Amsterdam Cast
Strong group for anyone who watched the film together and wants to go as a unit. The costume range is wide: two period looks, a sharp-dressed veteran, and a military general. Recognition at a general party is low, but the group has good visual contrast and the period setting gives every costume a clear through-line. Harold and General Dillenbeck have no dedicated pages here, so those costumes need to be built from knowledge of the characters.
Group Idea: Battle-Scarred Healers
Might work, but the connective tissue here is thin. Burt and Watson share a war-veteran-turned-doctor arc that actually holds up as a pairing. The Medic from Team Fortress 2 is a healer in a conflict setting, which fits loosely. Dr. Frankenstein is a doctor but not a healer and not battle-scarred in any meaningful sense. As a duo, Burt and Watson are the strongest version of this concept. As a four-person group, it requires explanation to land, and Dr. Frankenstein will likely pull the theme in a different direction visually.
Group Idea: Christian Bale Roster
Excellent group concept at any event where people know their film history. All four are Christian Bale roles with wildly different visual languages: a 1930s period gentleman, a suited 80s Wall Street psychopath, an armoured vigilante, and a pale alien villain in a dark robe. The contrast between the costumes is the point, and the shared actor is immediately legible to anyone who makes the connection. Patrick Bateman and Batman will carry recognition on their own. Burt and Gorr add depth for people who notice.
Group Idea: One-Eyed Wonders
Might work, but this group depends entirely on everyone committing to the eye-related detail as the visual anchor. Nick Fury’s eye patch is iconic. Mad-Eye Moody’s magical eye is a well-known prop. Elle Driver’s eye patch is recognisable to Kill Bill fans. Burt’s prosthetic is the least visually distinctive of the four and requires context to read as intentional. At a convention this lands. At a general party, three of the four will get recognised individually and Burt will be the odd one out.
This is a thrift store-friendly build. A tweed suit, a fedora, and a bow tie are the three items that do the work. Everything else is either something you already own or a small detail that adds without being required.
Burt is not a theatrical character. He does not perform. He notices things and says them plainly, sometimes at the wrong moment. That is the tone to aim for.
Start with the tweed suit and build from there. A 30s-style white dress shirt underneath, a vintage bow tie or green bow tie at the collar, pocket watch on the vest, and Oxford shoes at the base. Add the fedora and you have the shape of the costume. Burt also wears a prosthetic eye in the film, so an eye patch is one way to signal that character detail without the prosthetic.
Honestly, recognition is limited. Amsterdam (2022) had a poor theatrical run and is not streaming anywhere prominent, so outside of Christian Bale fans, most people will read this as a generic 1930s gentleman rather than a specific character. The costume holds up on its own as a period look, but do not expect many people to know who you are.
Burt has two memorable lines. The first is from early in the film: “We made a pact: if any one of us was in trouble, the other two would come running.” The second is more reflective: “We lived for each other. We would have died for each other. We almost did.”
Burt Berendsen is played by Christian Bale. The film was written and directed by David O. Russell and also stars John David Washington, Margot Robbie, and Robert De Niro. It was released in October 2022.
No. Burt lost an eye in World War One and wears a prosthetic glass eye in the film, not an eye patch. For a Halloween costume, an eye patch is the practical shorthand for that detail. A prosthetic-style painted ping pong ball is another option if you want to be more accurate.
The film is set in the 1930s, and yes, the costume reflects that period directly. Tweed suit, fedora, pocket watch, bow tie, Oxford shoes. All of it reads as 1930s without needing any modern modification.
Yes. The 1930s gentleman look works as a standalone period costume regardless of whether you or your audience know Amsterdam. If anyone asks, a one-sentence answer covers it: Christian Bale as a one-eyed doctor in a 1930s mystery. That is enough.