The Venice Film festival unveiled Mad Detective, co-directed by Hong Kong action film specialist Johnnie To and producer/director Wai Ka Fai, as a surprise competition entry.

Mad Detective, produced by To's production company Milkyway Image, is the story of a rookie cop who teams up with an unvonventional criminal profiler to catch a serial killer.

It's the latest in a number of collaborations between To and Wai Ka Fai including Fulltime Killer (2003) and Running on Karma (2003).

To was last in Venice in 2006 with Exiled.

Also last night, Venice bestowed Golden Career Lion honours on
American director Tim Burton. Johnny Depp presented the award.

Fans outside Venice's Palazzo del Cinema went wild as Tim Burton,
Helena Bohnam Carter and Johnny Depp arrived for the presentation
ceremony, which also featured a sneak preview of Burton's upcoming
film Sweeny Todd.

After the ceremony, The Nightmare Before Christmas was shown in its 3D
version. The original version was presented in Venice in 1994 while
Burton's Corpse Bride was presented at the Venice Film Festival in

Marco Mueller, Venice's artistic director praised Tim Burton as 'a visionary.'

'This award will always inspire me to keep going,' Burton said as he
received the award. 'I have always loved Venice,' which he hailed as a
festival whose focuses is on 'the purity of loving movies.'

The festival wraps its 64th edition September 8th.