Actor Dylan Neal has joined the cast of the movie adaptation of erotic bestseller Fifty Shades Of Grey.

The Percy Jackson & the Lightning Thief star will play Anastasia Steele's stepfather and husband of Jennifer Ehle's character Carla Adams, according to Deadline.com.

He joins Jamie Dornan, Dakota Johnson, Rita Ora and Marcia Gay Harden in the highly-anticipated film.

Fifty Shades of Grey began filming on Sunday (01Dec13) in Vancouver, Canada, and is set to hit theatres in 2015.