Katie Holmes All Smiles and Soaking Wet on Mania Days Set

Actress was spotted filming a scene in a fountain with her costar Luke Kirby

Looks like Katie Holmes is having loads of fun on set!

The mother of one was spotted Tuesday in Washington Square Park in New York City where she was snapped filming a scene on the set of her new flick Mania Days.

A very happy Holmes was joined by costar Luke Kirby on the soaking-wet set, where the twosome filmed a fun scene in a fountain, drenched from head-to-toe as they cooled off in the water.

Katie's costume for the day featured denim cutoff shorts and a white T-shirt, identically to the attire she donned last week.

She was also spotted holding hands with her costar, who plays her onscreen love in the romantic drama. The film centers around two manic depressives who meet in pyschiatric hospital and fall in love.

Mania Days is set to hit theaters in 2014.