My Christmas Prince (2017)

Samantha, a dedicated teacher in Manhattan, returns to her home town of Maple Falls, Wyoming every year for Christmas. This year, she’s delighted when her boyfriend Alex, a European diplomat from the tiny country of Madelvia, decides to joins her. Samantha later discovers Alex is actually a prince destined for the throne, turning her entire world upside down. Realizing that staying with Alex means spending her life in the constant glare of publicity and giving up the job opportunity of a lifetime, Samantha must decide if she loves Alex enough to make the transition from teacher to royal – or will it be too big a leap

Source: TMDb