The Baftas will take place on 10 February, and the Oscars on 24 February.
The winner of the EE Rising Star Award will be unveiled at the Baftas on 10 February.
Its Oscar success comes after it was named best animated feature film awards at the Baftas and the Golden Globes.
She was also nominated for the prestigious Richard Dimbleby Award for Best Television Presenter (Factual, Features and News) in the BAFTAS 2000.
Co-writer James Corden, who plays Gavin's best friend Smithy, also picked up the best comedy performance award at the Baftas in April.
The French are back with a strong presence this year, after The Artist dominated at both the Baftas and the Oscars in 2012.
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Elsewhere at the BAFTAs, Brits dominated the main acting prizes.
Despite sweeping the boards at the Baftas on Sunday and being hotly tipped for Academy Awards success, Mr Swain said The King's Speech relied heavily on the goodwill of all those involved.
The controversy here has continued to increase now that Affleck and Argo have been on a serious hot streak, with both winning top honors at the BAFTAs, Golden Globes, Directors Guild Awards, and Producers Guild Awards.
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The fact it focuses on real-life Hollywood producers saving the day probably has not done it any harm, and it has cleaned up at most major awards ceremonies so far, including the Baftas, Golden Globes, Producers Guild Awards and Directors Guild Awards.
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Argo has emerged as the best picture favourite at the Academy Awards, after scooping the top prize at the Baftas and Golden Globes, in addition to awards from the Directors Guild of America, the Screen Actors Guild and the Producers Guild of America.
It was the first time that Strachan - who has presented children's shows for nearly 20 years - had triumphed at the Children's Baftas.
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The King's Speech won seven Baftas and Mr Swain's work was recognised in the acceptance speeches.
Chancellor's co-stars in The Hour - Dominic West and Romola Garai - are also nominated for Baftas for other shows, Appropriate Adult (Dominic West) and The Crimson Petal and the White (Romola Garai).
The BBC3 show beat the likes of Strictly Come Dancing and Britain's Got Talent to the audience award, voted for by the public, in this year's Baftas.
The 50th anniversary of Doctor Who was marked at Sunday night's TV Baftas with a video montage while Jenna-Louise Coleman, who plays current assistant Clara Oswald, presented an award.
Norton has already picked up two Baftas, an International Emmy and a host of other awards for the show, earlier this year So Graham Norton was adapted to run each nightly as V Graham Norton on Channel 4.
Goffe has collected Baftas for children's animation Lost and Found (2009) and short animation Jojo In The Stars (2003).
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