We're only a few weeks away from the premiere of 'The Girl,' the new HBO feature based on the relationship between Alfred Hitchcock and Tippi Hedren -- which, if you'll recall, was rather intense as ol' Hitchy became a bit obsessed with the starlet. In this new featurette, HBO takes us behind the scenes for a closer look.

Toby Jones stars as Alfred Hitchcock in 'The Girl,' the film that tracks the making of 'The Birds' and 'Marnie,' two films in which Tippi Hedren played the lead. Sienna Miller tackles the tricky role of Hedren here, and will also have to portray her characters for both of the movies within the movie -- quite the feat.

For those unaware, Hitchcock became rather taken with Hedren, but his fondness gave way to obsession and when he couldn't get what he wanted, he made her life hell. Based on the book 'Spellbound By Beauty' by Daniel Spoto and adapted for HBO by Julian Jarrold ('Red Riding: 1974'), the film premieres on October 20, just in time for Halloween -- appropriate, we think, for one of the great masters of horror.

Check out this new featurette below, which takes us behind the scenes and shows us a few snippets of the film:

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