Mugglenet is reporting about a rumor saying that the Half-Blood Prince trailer will be played in front of the new Mummy film; The Mummy: Tomb of the Dragon Emperor on August 1st.

According to MuggleNet reader Kathleen, Universal pushed to have the Half-Blood Prince teaser trailer in front of Mummy to give a little boost to ticket sales. The teaser poster will be coming a week afterward. MuggleNet reader Michele tells us that her manager spoke with Warner Brothers, who told them that the trailer is to run in front of Mummy and not The Dark Knight.

Please remember this is a rumor and NOT confirmed in any way.