Atli Oskar Fjalarsson is an Icelandic actor. He started working in voiceover roles at the age of twelve before being cast in the movie Jitters at 16. As of 2017 Fjalarsson is living and studying in Los Angeles.
A lone scientist in the Arctic races to contact a crew of astronauts returning home to a mysterious global catastrophe.
An unexpected first kiss causes Gabriel to feel the electrifying "jitters" of love and lust with the free-spirited Marcus; a perfect way to end a Summer studying abroad. Realizing he is gay, Gabriel returns home and is immediately scrutinized by his family and friends who notice he’s different. But as the school year launches with Gabriel distracted with parties and his friends’ own dramas, Marcus returns, reigniting the hot, thrilling emotions of one’s first crush. Jitters fires head-first into the topsy-turvy world of first love with an attractive cast and pulsating soundtrack, making it a smartly refreshing journey into the queer, teen experience.
The story follows a 16-year-old Icelandic boy, Ari, who lives with his mother in Reykjavík. She has to leave the country for a new job, sending him back to the small town of his youth. There he finds his old friend, suddenly a young woman with a tricky romantic relationship; and his father has become a victim of the financial crisis.