Nicholas Sparks, author of book-turned-blockbuster The Notebook, is back this month with his latest project The Lucky One. We recently talked to the writer about his latest foray into film and his star Zac Efron. Nicholas explained why Zac was right for the challenging role of a soldier with PTSD returning from war and reflected on Zac's winning chemistry with leading lady Taylor Schilling. Sparks also divulged the fact that he was initially unsure of casting then-unknowns Ryan Gosling and Rachel McAdams as stars of The Notebook and told us which Hollywood actress he would love to see cast in the lead role in a big-screen version of his novel Safe Haven. Watch the video to find out who it is ahead of The Lucky One's April 20 release.