Lionsgate has announced that Jennifer, Josh, Liam, Elisabeth, and Toby will be right along Gary Ross at the UK Premiere. There was also an announcement about the Canadian Premiere.
 UK:
"9 Days until The Hunger Games prem at the Cineworld O2 Greenwich. Jennifer, Liam, Josh, Elisabeth & Togy will join Gary Ross".
Canada:
Alliance Films says co-stars Josh Hutcherson, Liam Hemsworth and Vancouver-born Alexander Ludwig are set to attend a red carpet debut in Toronto on March 19.
Alexander will also attend a premiere bash in Vancouver on March 21.
Source(s):
Twitter
Winnipeg Free Press