Hollywood star Tom Cruise has reportedly been mentoring Zac Efron and giving him career advice.

The two actors, who became friends after realising they are both motorcycle enthusiasts, speak regularly, with Cruise acting as younger actor's 'professional and personal guru'.

'Tom and Zac clicked the minute they met. Now, when Zac gets a script to consider, his first call is to Tom. Tom warned Zac to diversify and not get pigeon-holed in one type of role,' contactmusic.com quoted a source as saying.

Apart from giving the 'High School Musical' actor professional advice, Cruise advises him on personal matters as well.

The source explained to National Enquirer magazine: 'Zac is extremely shrewd, but he considers Tom a personal and professional guru. Tom also warned Zac how to conduct himself in public.'

The two are enjoying their bonding sessions so much they are even considering working on a new movie together.

'They've even talked about teaming up on a film together - the way Tom did with Paul Newman in the 1986 film 'The Colour of Money',' said the source.