Liam Hemsworth was spotted while taking a lunch break on the Acton, California set of his upcoming film Lonely Planet on Sunday.The 33-year-old performer was seen checking his phone as he took a break in between scenes, and he was also pictured as he had a conversation with one of the movie's crew members.The actor is also involved in the production of a television series in which he is set to take over the lead role from its current star. Hard at work: Liam Hemsworth was spotted while taking a lunch break on the Acton, California set of his upcoming film Lonely Planet on SundayHemsworth kept it casual in a beige button-up shirt, blue jeans and white sneakers during his time on set.The Hunger Games franchise star later donned a black puffy jacket to keep himself comfortable in the cool winter weather.