WASHINGTON: Pop hunk Justin Timberlake’s acting lessons from lover Cameron Diaz are hampered because the couple keep bursting into peals of laughter. The “Like I Love You” singer went to his ‘Being John Malkovich’ star girlfriend for help, after being roped in to star opposite movie veterans Kevin Spacey and Morgan Freeman in upcoming flick ‘Edison’, reports Teen Hollywood.

But instead of helping him fine-tune his craft, chirpy Cameron has only been exercising his laughter muscles. A source says, “Cameron offered to help but every time they get down to it they just end up falling about giggling. Justin’s nervous about being on screen with two acting legends. He’s realising Cameron is not the right person to lend a hand. They enjoy having fun too much.” Recently, Timberlake proved his true love for Diaz by showering her with $1,08,000 worth of diamonds. According to a report in Teen Hollywood, the singer, 23, spent hours snapping up stunning gems for the ‘Charlie’s Angels’ star in the Los Angeles branch of top jewellers Tiffany’s.

According to the Sun, Cameron wrapped her arms around Justin and gazed into his eyes as he grinned adoringly in front of a hotel. While Justin is taking time out after a year touring the world to promote his album ‘Justified’, Cameron is working on new movie ‘In Her Shoes’, playing a party girl who clashes with her no-nonsense sister.