Tommy Lee Jones wants to start work on 'Men In Black 4' ''tomorrow''.

The 65-year-old actor - who plays Agent K in the film franchise - was so impressed by the third movie in the series, and in particularly Josh Brolin's ''fine job'' at portraying Young Agent K, that he wants to start filming a fourth instalment as soon as possible.

When asked if he's looking forward to 'Men In Black 4', he joked: ''I hope we can start tomorrow.

''I've only seen 'Men In Black 3' in the form of rough work print. Josh seemed to have done a fine job. I thought it was just fine.''

Tommy found it ''weird'' having Josh portray a younger version of his alter-ego because the 44-year-old star had to constantly observe the 'Captain America' actor to make sure he was getting his mannerisms right.

He explained: ''It's weird. I've never done it before. It never happened to me before.

''We didn't talk much if any about this character because you can't learn more about the character by talking to me than you can by looking at it.''

Tommy was delighted to team up with Will Smith (Agent J) in the film franchise 10 years after 'Men In Black 2' because he admires the 'I Am Legend' star's acting ability.

He added to ''He's a very good actor. He's a fine actor. We developed a rapport right away and became friends as time went on. ''