So, tomorrow afternoon DH & I are going to the movies (YAY, first 'date' kidfree since forever!) and I am a bit unsure if DD will be ok for the four hours we are gone without a breastfeed?

MIL is going to watch DS & DD. I can feed DD when we get to MIL's house around 2pm. Usually DD has another breastfeed around 4:30ish give or take but we won't get back to MIL's until about 6:30ish. I'll leave some snacks and dinner for her as well, but will it be enough especially since she is used to milk at around 4:30. I am crappola at expressing and have only got about 30mls. She would probably take about 100-150mls EBM. Should I just leave her with the food and water instead or express like crazy tonight (or leave some formula which I'd rather avoid if I can help it)?