13 Going on 30’s costume designer talked Jennifer Garner’s ‘Thriller’ dress becoming a classic, and explained why fans love it so much now.

The "Thriller" sequence is one of the most memorable moments in 13 Going on 30, so why did Mark Ruffalo hate it so much?

Mark Ruffalo and Jennifer Garner channelled 13 Going On 30 by dancing to Thriller, but the movie scene almost made Ruffalo quit.

We love a good rom-com reunion, especially when it's between 13 Going on 30 buddies Jennifer Garner and Mark Ruffalo, and there's roasting involved.

Jennifer Garner's latest comedy has fans seeing deja vu over her beloved 13 Going on 30 role.

Jennifer Garner’s 13 Going on 30 Thriller dance may be great, but her ballet video is hysterical.

It sounds like making 13 Going On 30 forced Mark Ruffalo way out of his comfort zone.

The 2004 co-stars worked together for the first time in almost two decades for the upcoming Netflix time travel film.

The rom-com co-stars reunited to play parents in Netflix's upcoming movie, The Adam Project.

13 Going on 30's Christa Allen is now 30 herself so, of course, Jennifer Garner had to share her sweet reaction.

The actress behind the 13-year-old Jenna Rink is officially thirty, flirty and thriving.

What would 13 Going On 30 be without Mark Ruffalo's Mattie?

Jennifer Garner has some thoughts on the iconic 2004 romantic comedy.

Matty and Jenna are back together in a totally adorable new photo.

Ryan Reynolds is once again working with the best.

Jennifer Garner is making a new body swap comedy, but this one has a lot more body swapping going on.

Looks like the Hulk actor needs a play-by-play of his past co-stars.