Harvey Wenstein has dubbed ''sensational'' Rita Ora his ''biggest discovery''.

The Hollywood veteran - who produced the Academy Award-winning film 'Shakespeare in Love' - has given the 23-year-old 'Hot Right Now' singer his seal of approval after they worked together on his new film 'Southpaw', which also stars Jake Gyllenhaal.

He said: ''Rita Ora did a sensational job.

''Her scene is breathtaking, because she's a very glamorous, beautiful woman.

''But we did the opposite, we made her up to look like a tough junkie.

''She is heartbreakingly real and wonderful and acting opposite Jake - who is riveting in this movie - she holds her own and then some.''

Clearly smitten with the singer, Harvey told MailOnline: ''I will work with Rita again and again and again. Personally, I think she's my biggest discovery as an actress this year.''

'Southpaw' has an all-star cast, featuring Rachel McAdams, Naomie Harris and Forest Whitaker.

Rita has already made a name for herself in the industry after she finished filming scenes for the highly-anticipated movie 'Fifty Shades of Grey', which stars Jamie Dornan and Dakota Johnson, and is scheduled for release in February 2015.