Wanting to have a pictorial memento of their time on set, Gomez broke from her character's 1930s time and whipped out her iPhone.
Roping in another actor as official photographer, the former girlfriend of Justin Bieber threw her arms around the 20-year-old actor and posed up a storm.
The actress then decided to tease Wolff, refusing to show him the photographs afterwards.
For her day on set as young mother Lisa London, Gomez was dressed in 1930s garb, a simple cotton floral frock with buttons on the front and frilled sleeves befitting someone who lived in the rural areas of California, where the film is set.
Wolff, who is the movie's main star, looked the part in a filthy khaki shirt, trousers and a cheese cutter cap.
The pair forms part of an all-star cast which also includes James Franco, Bryan Cranston, Josh Hutcherson, Vincent D'Onofrio, Ed Harris and Robert Duvall.
Franco is not just starring in the film, but is also the director of the period piece based on the 1936 novel of the same name by John Steinbeck.
The story follows an activist that becomes part of a labour battle between fruit workers in order to draw people to his own cause which simultaneously shines a light on the unfair conditions that exist for migrant workers in particular.
Filming is almost done for the movie, which is abstemiously slated for release later this year.
Selena Gomez has also been working hard on some new music ...
Now you've got an excuse to be like a monkey
Nailspiration
Vanessa Hudgens goes Vogue
Ed Watch:
Christchurch last night! Wellington Tonight!
Not a fan of NZ chocolate? Obviously isn't eating Whitakers!
Chocolate Snob!
This guy is impossible not to like!
- Daily Mail, nzherald.co.nz
