New pictures from the set of Once Upon A Time In Hollywood, Quentin Tarantino's star-stuffed retelling of the Charles Manson murders, show everything's coming along quite nicely (if 'quite nicely' is taken to mean 'it's so extremely 1969 that two of the world's most famous men are now unrecognisable'. )

Here's Brad Pitt, who's married Robert Redford's hair with an all-white double denim two-piece, hanging out in between takes with Leo DiCaprio, who's teamed a knitted shirt with hair on a Jack-Black-playing-Paul-from-S-Club-7 vibe.

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Bear Grylls//Digital Spy

Pitt was also seen on set with what looks like a three-foot prosthetic neck extension, though the Hawaiian-shirt-over-white-tee look is a lot more practical than the white denim suit which makes him look like a Harley-riding preacher.

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Bear Grylls//Digital Spy

Finally, there's a picture of Margot Robbie playing the heavily pregnant Sharon Tate, who was murdered by Manson's followers two weeks before she was due to give birth.

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Bear Grylls//Digital Spy

Once Upon A Time In Hollywood will follow Pitt and DiCaprio's characters - an actor and his long-time stunt double - who live next door to Tate and are trying to make a name for themselves in Los Angeles.

The film had hit a bit of a snag recently in losing the late Burt Reynolds before he'd had a chance to shoot his scenes, but his part's been recast with Tarantino favourite Bruce Dern in his stead.