Pollono is active in the Los Angeles theater scene; he is one of the playwrights-in-residence at Rogue Machine Theatre and a part of The Temblors playwriting collective.

[4] During this time, Pollono also guest starred in television series including How I Met Your Mother and Grey's Anatomy, and had other small acting credits on film and stage.

[3][8] In 2011, Rogue Theatre produced Pollono's black comedy play Small Engine Repair, which in large part was inspired by his upbringing outside of Manchester, New Hampshire.

A year-and-a-half later, the play was produced by MCC Theater in New York City and premiered at the off-Broadway Lucille Lortel Theatre.

Of note, Mob City stars Jon Bernthal, who Pollono had just acted opposite in Small Engine Repair at Theatre/Theater before production of the television show began.

In 2014, Pollono was tapped to write the screenplay for what would become the 2017 film Stronger, which starred Jake Gyllenhaal as Boston Marathon bombing survivor Jeff Bauman.

[14] The screenplay, based on Bauman's memoir Stronger, was number two on the Black List in 2016 and the film was released in 2017 to critical acclaim.

Directed by Todd Phillips and co-written by Scott Silver, the team that produced 2019's Joker, the film will star Chris Hemsworth.