The original fur trapper Hugh Glass, left, in 1830, and as portrayed by Leonardo DiCaprio in The Revenant. Photo / Supplied
Move over, Rory Bremner - it's movie stars who get paid the big bucks to impersonate other people, with all the wigs and prosthetic noses and fake tan that Hollywood can muster. But how accurate are the results?
1. Leonardo DiCaprio as Hugh Glass, The Revenant
Nominated for Best Actor
Top marks for DiCaprio in the beard stakes, if we are to believe that this 1830 portrait of Hugh Glass, a man around whom many myths have swirled, is accurate. Some thought that after crawling for hundreds of miles after being attacked by a bear, DiCaprio might have looked a bit leaner, but his thick furs cover all imperfections in period-appropriate style.
2. Eddie Redmayne as Einar Wegener/Lili Elbe, The Danish Girl
Redmayne's delicate features make him a beautiful woman, but one who bears no particular resemblance to Lili Elbe, the Danish painter who underwent one of the earliest gender reassignment operations.
We've got good work going on in the accessories department: Dalton Trumbo, the blacklisted Hollywood screenwriter, did indeed clutch a cigarette holder between his teeth, and the spectacles are pretty spot-on. Facially, though, the two couldn't look much more different.
4. Michael Fassbender as Steve Jobs, Steve Jobs
Nominated for Best Actor
Fassbender's wolfish features don't really correlate with the round face of the Apple co-founder. The black polo neck, on the other hand, is a triumph. Oscar for the black polo neck!
5. Jennifer Lawrence as Joy Mangano, Joy
Nominated for Best Actress
Classic Hollywood mythologising here - normal human Joy Mangano, who in her mid- 30s invented the Miracle Mop, morphs into screen goddess Jennifer Lawrence (age 25).
6. Christian Bale as Michael J Burry, The Big Short
This generic blonde look doesn't raise the heart rate, but most journalists just aren't that exciting visually. Let's start a petition to get Rachel McAdams to play Julie Burchill instead.
11. Kate Winslet as Joanna Hoffmann, Steve Jobs
Nominated for Best Supporting Actress
Glasses again doing most of the heavy lifting. Shades of Roseanne Barr for the real Apple marketing whizz?
Stick a vaseful of flowers on anybody's head and they're going to look a bit like Hedda Hopper, it seems.
13. Ryan Gosling as Greg Lippmann ('Jared Vennett'), The Big Short
Film nominated for five Oscars (Best Picture, Best Supporting Actor, Best Director, Best Adapted Screenplay, Best Editing)
Ryan Gosling's fake tan is much more striking than Lippmann's, but this wheeler-dealer character from Michael Lewis' original bestselling book was renamed for the big screen, so perhaps some poetic licence is allowed.
14. Steve Carell as Steve Eisman ('Mark Baum'), The Big Short
Film nominated for five Oscars (Best Picture, Best Supporting Actor, Best Director, Best Adapted Screenplay, Best Editing)
Fund manager Steve Eisman told reporters it was his luxuriant head of hair that first caught his wife's eye; Steve Carell's version is a laughable but entirely accurate recreation of that alluring mane.
15. Seth Rogen as Steve Wozniak, Steve Jobs
Film nominated for two Academy Awards (Best Actor, Best Supporting Actress)
High geek points for Rogen as Apple co-founder Steve "Woz" Wozniak, thanks to a wardrobe of sleeveless woollen sweaters, but his 'fro is clearly off the mark.