The Braveheart star and Grigorieva welcomed daughter Lucia in 2009, but parted ways the following year (10).

The former couple shares custody of the girl, but Gibson has requested to have the five year old spend the summer in Australia with him while he shoots a movie.

However, Grigorieva does not approve of the plan and the two parties are due in court later on Friday (12Jun15) to work out a deal, according to