Michael Fassbender, 36, is said to have been romancing his co-star Lupita Nyong'o on and off in recent months but he is now keen to show her he is serious about their relationship, reported Contactmusic.
"They have an incredible connection after the whirlwind of filming '12 Years A Slave' and then promoting it together. In September during the Toronto Film Festival they had a brief romance. Now Michael is intent on showing how he wants to get serious again and made a point of bringing his mum Adele to the Oscars rather than a date.
"Lupita Nyong'o's the most in-demand woman in the world at the moment so it will be hard to make it work but their chemistry is undeniable," a source said.
Michael Fassbender was previously in a relationship with Gerard Butler's ex-girlfriend Madalina Ghenea.